Dynmap fails on Paper 1.20.4

[BKO]

template is bold sample data is italicized

Issue Description: Dynmap sample issue description. This description would include as much and as little detail necessary for us to understand the issue in its entirety.

• Dynmap Version: v3.7-beta-2-923
• Server Version: Paper 1.20.4
• Pastebin of Configuration.txt: https://pastebin.com/Tg4z77W9
• Server Host (if applicable): Pebblehost
• Pastebin of crashlogs or other relevant logs: https://pastebin.com/3UK5XCUw
• Other Relevant Data/Screenshots: These failures began after I updated my world to 1.20.4

• Steps to Replicate: With dynmap installed on version v3.7-beta-2-923, update server version to 1.20.4

  [x ] I have looked at all other issues and this is not a duplicate
  [x] I have been able to replicate this

[JurgenKuyper]

dup #4042